The component inside a surge protector is a sacrificial one. It conducts almost nothing for years, absorbs the energy of an event when one arrives, and comes back slightly worse than before. That is the whole design, and it explains both why the device works and why it eventually has to be thrown away. Last … Read more
Load dump is the reason automotive electronics are specified and tested differently from consumer electronics. It is not a fault and it is not rare in the sense of being impossible: it is a normal consequence of how a charging system behaves when a heavy load is suddenly removed, and its duration is what makes … Read more
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